.box {
    width: 400px;
    background: rgba(0, 0, 0, 0.5);
    position: fixed;
    top: 50%;
    left: calc(50% - 350px/2);
    transform: translateY(-50%);
    padding: 20px 0;
}


.box p {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    font-size: 20px;
}

.box p span {
    display: block;
    width: 100px;
    text-align: right;
    margin-right: 20px;
}

.box p input {
    width: 240px;
    height: 30px;
    line-height: 30px;
    border: 2px solid #000;
    outline: none;
}

.box div {
    text-align: center;
}

.box button {
    display: inline-block;
    width: 80px;
    height: 40px;
    border: 1px solid #000;
    outline: none;
    margin: 20px;

}

table {
    display: none;
    border-collapse: collapse;
    width: 100%;
    margin-left: 30px;

}

td,
th {
    border: 1px solid #000;
    text-align: center;
    margin: 0 20px;
}

table thead {
    background: #ccc;
}